The provisions of this chapter shall not apply to any explosive or flammable compound, blasting caps or similar items used for industrial purposes, or to any blank cartridges for use by persons for bona fide ceremonial purposes, athletic or sports events or military ceremonials or demonstrations. This chapter shall not be construed so as to prohibit the use of torpedoes, flares or fuses by motor vehicles, railroads or other transportation agencies for signal purposes, or the assembling, compounding, use and display of fireworks of whatever nature by any person engaged in the production of motion pictures, theatricals or operas when such use and display are a necessary part of the production and such person possesses a valid permit to purchase, possess, transport or use dangerous fireworks; nor shall this chapter prohibit any manufacturer, wholesaler, dealer or jobber having a license and a permit, if a permit is required by this chapter, from manufacturing or selling any kind of fireworks for direct shipment out of this state, manufacturing or selling at wholesale any dangerous fireworks to properly licensed persons holding a permit, if a permit is required by this chapter, or selling fireworks to persons having a license and a permit for public displays of fireworks. (Ord. 2616 § 10, 1982: Ord. 346 § 10, 1962).